Human Evolution

Classification of Humansclassification shared characteristics

kingdom Animalia sexual reproduction, heterotroph

phylum Chordata 5 characteristics (notochord, gill slits,…)

class Mammalia mammary gland, fur

order Primates opposable thumb, fingernails, shoulder sockets can make complete

circles, forward facing eyes

family Hominidaelarger brains and body, complex social

behavior, 32 teeth, sexual dimorphism, prolonged period of

parental care

genus Homo

species Homo sapiens

http://www.pbs.org/wgbh/nova/evolution/meet-your-ancestors.html

CLADISTICS

1.State the derived (common) trait of primates, rodents, and rabbits.

2.State the shared characteristic for the last common ancestor of dinosaurs and primates.

3.State which two organisms are more closely related to each other, amphibians and ray-finned fish or amphibians and primates.

last common ancestor

common Hominidae characteristics

common primate characteristics

rela

tive

time

new and old world monkeys

HominidaeChimpanzees, Humans,

Gorillas, Oragutans

1. Length of Braincase

2. Zygomatic Arch

3. Mandible (lower jaw)

4. Brow Ridge5. Forehead6. Width of

Braincase7. Orbits8. Sagittal

Crest9. Canine10. Dental

Arcade11. Foramen

Magnum12. Canine

Diastema

Supraorbital Ridge

Dental Formula